| 摘要 |
1,092,595. Mining vehicles. ATLAS COPCO A.B. March 28, 1966 [April 5, 1965], No. 13513/66. Headings B7D and B7H. [Also in Division E1] The frame structure of an underground mining vehicle includes two interchangeable side frame elements 4 each of which is bolted to a central frame structure supporting materials handling means and carries track drive sprockets or ground wheels 7 driven from a reversible variable-speed sliding vane compressed-air motor 19 through a gear train contained within the side frame element 4. A clutch 16 controlled by a lever 20 couples a gear 15 meshing with a pinion 17 on each motor shaft 18 to a gear 14 driving the wheel shafts 6 through gears 8, 10, 11, 12, 13. The vehicle carries a shovel 27 mounted on a pivoted arm 28 which is actuated by a chain 34 wound on a reel powered by a compressed-air motor 32 under the control of a valve 36. A receptacle 31 which receives the shovel contents is tiltable by an air cylinder 41 into a raised discharge position wherein a rear wall 38 is opened by a chain 40 connected to an arm 76. A handle 44 actuates valves 45, 46 providing independent control of the motors 19 for steering purposes. Compressed air is supplied to the vehicle through a hose connection 47, main valve 48 and an oiler 49. Figs. 8-12 (not shown) illustrate modifications in which the vehicle is provided with a side-tipping shovel or a shovel movable from a front digging position to a rear discharge position. The wheels 7 may be steerable. |
